Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide (tomorrow) : 4:04 am (1.2 ft)
Next high tide : in 58m at 8:22 pm (9.5 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:47 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Apr 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:0010.43:397.69:37-0.89:222.65:536:30Waxing Crescent1Sat
2Sun3:3910.15:517.111:32-0.611:143.26:517:31Waxing Crescent2Sun
3Mon4:239.67:146.912:32-0.36:507:32First Quarter3Mon
4Tue5:168.98:407.012:223.61:410.06:487:33First Quarter4Tue
5Wed6:218.39:467.31:543.82:540.26:477:34First Quarter5Wed
6Thu7:377.910:347.53:213.64:010.26:457:35First Quarter6Thu
7Fri8:517.711:107.74:283.24:540.26:447:36Waxing Gibbous7Fri
8Sat9:567.711:397.95:202.65:370.36:427:36Waxing Gibbous8Sat
9Sun10:507.86:032.16:120.46:417:37Waxing Gibbous9Sun
10Mon12:038.111:39 AM7.86:411.66:430.76:397:38Waxing Gibbous10Mon
11Tue12:248.412:247.77:151.17:111.06:387:39Full Moon11Tue
12Wed12:458.71:087.67:480.77:381.46:367:40Full Moon12Wed
13Thu1:069.01:527.58:190.38:051.86:357:41Full Moon13Thu
14Fri1:299.22:387.38:52-0.18:332.36:347:42Full Moon14Fri
15Sat1:539.43:277.19:26-0.39:042.76:327:43Waning Gibbous15Sat
16Sun2:219.54:206.910:05-0.59:373.16:317:44Waning Gibbous16Sun
17Mon2:549.45:226.710:49-0.610:173.56:307:45Waning Gibbous17Mon
18Tue3:349.36:356.611:41-0.611:093.86:287:45Waning Gibbous18Tue
19Wed4:249.07:516.712:43-0.56:277:46Third Quarter19Wed
20Thu5:288.78:547.012:283.91:51-0.56:267:47Third Quarter20Thu
21Fri6:478.49:417.42:093.72:59-0.56:247:48Third Quarter21Fri
22Sat8:108.210:188.03:343.13:59-0.46:237:49Third Quarter22Sat
23Sun9:278.210:538.74:392.34:50-0.36:227:50Waning Crescent23Sun
24Mon10:388.211:269.35:341.45:360.16:207:51Waning Crescent24Mon
25Tue11:448.311:5810.06:240.46:200.66:197:52Waning Crescent25Tue
26Wed12:458.27:11-0.47:011.16:187:53New Moon26Wed
27Thu12:3210.41:458.17:58-1.07:431.86:177:54New Moon27Thu
28Fri1:0710.72:448.08:44-1.48:272.46:157:55New Moon28Fri
29Sat1:4310.73:437.89:30-1.59:122.96:147:55Waxing Crescent29Sat
30Sun2:2110.44:437.610:17-1.310:023.36:137:56Waxing Crescent30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414549)

Common Questions About Upper Guadalupe Slough, CA Tides

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What time does the tide turn (slack tide) in Upper Guadalupe Slough, CA today?

Slack tide in Upper Guadalupe Slough, CA is approximately 12:13 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Upper Guadalupe Slough, CA?

Upper Guadalupe Slough, CA is currently in a neap phase. Tonight's moon is 59% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly minimum.

What datum are Upper Guadalupe Slough, CA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Upper Guadalupe Slough, CA?

Tide predictions for Upper Guadalupe Slough, CA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Upper Guadalupe Slough, CA?

Tide data for Upper Guadalupe Slough, CA is sourced from NOAA Station #9414549. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9414549.

What is the moon phase in Upper Guadalupe Slough, CA tonight?

Tonight the moon over Upper Guadalupe Slough, CA is First Quarter (59% illuminated). This places Upper Guadalupe Slough, CA in a neap tide cycle, so tidal ranges are near their weekly minimum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA